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Definitions

diameter

[dahy-am-i-ter] / daɪˈæm ɪ tər /
NOUN
measurement across object
Synonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“I think it was a 10-foot diameter ... everything kind of flowed back from that.”

From Los Angeles Times • Apr. 10, 2026

With a steady hand, she manoeuvred a huge wind turbine section, five metres in diameter, across the yard.

From Barron's • Mar. 7, 2026

The cost for treating oak wilt, or any tree disease that requires a fungicide injection, depends on the tree’s diameter at breast height, or DBH.

From The Wall Street Journal • Feb. 4, 2026

By analyzing its length and diameter, the researchers assessed whether the bones could withstand the forces produced during hopping.

From Science Daily • Jan. 23, 2026

At first glance it seemed unprepossessing: just a small, flat, unpainted, circular disk of hard-baked clay, 6 1/2 inches in diameter.

From "Guns, Germs, and Steel: The Fates of Human Societies" by Jared M. Diamond




Vocabulary lists containing diameter